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Reference design helps GaN ICs reduce size of power adapters

At over 21W/in3 and at over 95% efficiency, the NVE021A reference design is more than two times smaller than typical commercial designs, according to the company, and 40% smaller than the current best-in-class option.

The design can be adapted over a power range of 85 to 500W, to enable converters that address thin LED TVs, fast-charging laptop adapters, high-density gaming systems, all-in-one PCs and any other systems seeking high-density or high efficiency power.

The GaN power ICs enable high-frequency switching to shrink passive components. Soft-switching critical-conduction mode (CrCM) power factor correction and LLC DC/DC stages operate at up to 300kHz (600kHz during start-up, burst mode). This, says the company, is the fastest-possible speed provided by off-the-shelf controller ICs available today.

The reference design (150W, AC to 12V DC) is immediately available, and includes a user guide / test report with all schematic and layout design files, and bill of materials.



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